A·qa·ba (ä?k?-b?, ?k??-), Gulf of An arm of the Red Sea between the Sinai Peninsula and northwest Saudi Arabia. It has long been of strategic importance in the Middle East.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Aqaba (?æk?b?) or Akaban (Placename) the only port in Jordan, in the southwest, on the Gulf of Aqaba. Pop: 80 790 (2004)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014A?qa?ba or A?ka?ba (?? k? b?, ?æk ?-) n. 1. a seaport in SW Jordan at the N end of the Gulf of Aqaba. 10,000. 2. Gulf of, an arm of the Red Sea between Saudi Arabia and Egypt. 100 mi. (160 km) long. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.